Scientists studying sea lampreys have unlocked the mystery of human stress hormones. Eons ago, when Man was still an Aquatic Ape, disgusting lampreys would cling all over him, drain his blood, then drag him neath the waves. Researchers now believe these attacks caused a lot of stress, so stress hormones were evolved as a countermeasure. While Man eventually gave up being aquatic, fears of being covered in lampreys and dragged neath the waves can still induce anxiety in some beachgoers. Fortunately, Modern Man is able to augment his stress hormones with relaxing cigarettes, though the bureaucrats hate to admit it.